BitBar plugin takes very long to run

[fenhl]

I've noticed that the plugin seems to be running almost all the time. Looking at it in htop, it seems like the plugin is making three requests to www.ombord.info per invocation, each of which times out after around a minute on my current (home) network. I don't know what the behavior of these APIs is like when actually on the relevant network, but perhaps some timeouts could be shortened or detection of this network could be changed to something that doesn't time out?

cc @raccube who seems to have added support for this type of network.